Automatic pet feeder



FIG. 1 is a top plan view of an automatic pet feeder showing my new design with the lid fully open;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a right side elevational view of FIG. 1;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevational view of FIG. 1. 

The ornamental design for an automatic pet feeder, as shown. 